It is possible to estimate the calories, but it is time consuming, and expensive and further the results are very inaccurate.
I am against calories counting and it makes you only mad. Many food ingredients are mixed in different proportions in our food and so it is also very difficult to calculate the calories of a food from the individual food calories chart.

Watch the amount of food, the variety of food and by doing so you can find out the optimum for you and your family. Consult a good dietician and it helps a lot to understand several things about our foods.

You are that what you eat.